Cicada Sounds: How Do They Make That Noise?

Have you ever been outside on a hot summer day and heard a loud, buzzing sound? Chances are, you were listening to a cicada! These insects are known for their unique and often very loud calls. But how do they make that noise?

Cicadas don't actually have vocal cords like humans do. Instead, they make their sound using a special organ called a tymbal. The tymbal is a thin, drum-like membrane located on the cicada's abdomen. When the cicada contracts its muscles, the tymbal vibrates rapidly, producing a loud, buzzing sound.

How Cicadas Use Their Sounds

Cicadas use their calls for a variety of reasons, including:

Attracting mates: Male cicadas use their calls to attract female cicadas. Each species of cicada has its own unique call, which helps them find each other.
Defending territory: Male cicadas may also use their calls to defend their territory from other males.
Warning predators: Some cicadas may call loudly to startle predators or to warn other cicadas about danger.

Types of Cicada Calls

Cicadas produce a variety of different sounds, depending on the species and the situation. Some cicadas have very loud, high-pitched calls, while others have softer, more melodic calls. Some cicadas even have calls that sound like clicks or rattles.

Here are some common types of cicada calls:

Song: This is the most common type of cicada call. It is used primarily for attracting mates.
Alarm call: This call is used to warn other cicadas about danger. It is often a series of short, sharp clicks or buzzes.
Courtship call: This call is used to attract a female cicada's attention. It is often a softer, more melodic call than the song.

Interesting Facts about Cicadas

Cicadas are found all over the world, but they are most common in warm, humid climates.
Some species of cicadas live underground for up to 17 years before emerging as adults.
Cicadas are a valuable food source for many animals, including birds, snakes, and squirrels.

Conclusion

Cicadas are fascinating creatures with a unique way of communicating. Their loud, buzzing calls are a familiar sound of summer. By understanding how cicadas make their noise, we can better appreciate these incredible insects and the role they play in the natural world.

Cicada Sounds: How Do They Make That Noise?